Eotaet motion



(No Model.) 2 Sheets--Sheet 1. E. K. DUTTON. APPARATUS FOR TRANSMITTINGROTARY MOTION.

,713. Patented Aug. 10,1897.

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(No Model.) 2 Sheets-Sheet 2.

I E. K. DUTTON. APPARATUS FOR TRANSMITTING ROTARY MOTION.

No. 587,713. Patented Aug. 10, 1897.

lfi F C 4- F j J if A 1 2 B5 i A K F F JV/TNESSES UNITED STATES PATENTOFFICE.

EDFVARD KENYVORTHY DUTTON, OF IIARROGATE, ENGLAND.

APPARATUS FOR TRANSMITTING ROTARY MOTION.

SPECIFICATION forming part of Letters Patent No. 587,713, dated August10, 1897. Application filed December 11, 1896. Serial No, 615,384. (Nomodel.) Patented in England May 16,1896, No. 10,523.

To aZZ whom it may concern.-

Be it known that I, EDWARD KEN WORTHY DUTTON, asubject of the Queen ofGreat Britain, residing at Arden, Harrogate, county of York, England,have invented certain new and useful Improvements in Apparatus forTransmitting Rotary Motion, of which the following is a specification.

The invention has been patented in England, No. 10,523, May 16, 1896.

The invention relates to frictional rotarymotion-transmitting apparatus.A frictionwheel and disk have been used for the purpose for many years,but have had the disadvantage of being limited in transmittingcapability. To increase such capability, I combine two or threefriction-wheels, which are mounted close to one another, on a commonaxis and are connected by means of balance-gear, so that each wheel canrevolve at a speed due to its distance from the disk center, and forsome purposes I combine two sets of such combined friction-wheels andconnect such sets by means of balance-gear.

In the accompanying drawings, which are illustrative of my invention,Figure 1 represents two friction-wheels connected by means ofbalance-gear. Fig. 2 represents three friction-wheels similarlyconnected. Fig. 3 shows a combination of two sets, each comprising, twofriction-wheels. Fig. 4 shows a combination of the two wheels in Fig. 1with a disk. Fig. 5 shows a combination of the three wheels in Fig. 2with a disk. Fig. 6 shows a combination of two sets, each comprisingthree friction-wheels, and also shows the application of the same to adisk.

In Fig. 1, A A are two friction-wheels which are mounted to revolveloosely upon a shaft 13 and are provided with tires of leather or othersuitable material. Each wheel is formed in one piece with or secured toa bevel-gear O or O, and the two bevel-gears mesh with an intermediatebevel-gear D, which is mounted to revolve upon a stud E, carried by ahub or block E, which is fast to the shaft B.

In Fig. 4 the set of two friction-wheels is shown in combination with adisk I, the wheels driving the disk or the disk drivingthe wheels, asmay be required. It will be seen that if the two wheels A A revolve atthe same speed the shaft B will also revolve at the same speed,

the two speeds of the wheels-as, for example, if one wheel revolves atfour hundred and the other at three hundred and sixty the hub E and, asa consequence, the shaft B will make three hundred and eightyrevolutions per minute, both wheels revolving in the same direction. Thetwo wheels A A are made of a dished form, so as to bring the two tires AA near together. The closer the said tires are brought to each other theless will be the difierence between the speeds of the two wheels, sothat the wheels may run at a high velocity while the gear D is revolvingslowly.

In Fig. 2 the connection of the two wheels A A is the same; but acentral wheel A is added, such wheel forming part of, or being attachedto,'the hub E which carries an intermediate bevel-gear D, which mesheswith gears C 0 fixed to the two wheels A A The tires of the'three wheelsare brought close together, as in the case of thetwo wheels in Fig. 1.In the example the two outer wheels A A will revolve at different speedsand the central wheel A will revolve at a speed which will be the meanof the speeds of the two outer wheels, each wheel transmitting itsproportionate share of the driving strain.

Fig. 5 shows the set of three friction-wheels in combination with a diskJ. When the disk would be the driver, the two outer wheels A A wouldtransmit driving power through the intermediate gear D to the centralwheel A and the said gear D would revolve to suit the differing speedsof the two outer wheels.

In the ordinary use of a single frictionwheel driving or being driven bya disk it is usual to try to obtain transmitting capability by makingthe periphery of the friction-wheel wide, so as to increase the holdupon the disk; butI consider this to be a mistake' for thereason thatonly the central part of the width of the wheel can revolve at thecorrect speed,

one edge revolving too fast and the other too slow, so that muchfriction, wear, and loss of power are entailed. For this reason I usewheels having comparatively narrow periphconcert.

cries, and by combining two or three together obtain greater efficiencythan if a single wheel equal in width to the three combined should beused.

In Fig. 3 two sets of friction-wheels, each comprising two wheelscombined, as in Fig. 1, are connected by balance-gear, so as to act inIn this example the hub E is not fast to the shaft B but is connected bymeans of a sleeve F,which extends through the wheel A with a bevel-gearG, the said connected parts revolving loosely upon the said shaft. Thetwo bevel-gears G G are connected by an intermediate bevel-gear H, whichis mounted upon a stud 11, carried by a hub or block E, which is fixedor formed upon the shaft 13 The four friction-wheels can thus act inconcert upon or be acted upon by a disk.

Fig. 6 shows a combination of two sets of friction-wheels with a disk K.In the example each of the two sets M N comprises three wheels formedand connected as inFig. 2, with the exception that the hub F. isconnected with thebevel-gear G in Fig. 6 by means of a sleeve F, as inthe ease of the combination shown in Fig. 3.

In Fig. 6 one set of friction-wheels is on one side of the axis of thedisk and the other set on the other side. In such a case when both setswould be equidistant from the disk-axis no motion would be comm unicatedto the shaft B supposing the disk to be driving; but if the shaft wereto be moved in the direction of its axis or if the combination offriction-wheels and gears were to be moved along the shaft in eitherdirection the said shaft would be revolved, the speed increasing inproportion to such movement. It will be obvious that more than oneintermediate gear may be used to connect the gears C G, 0 C or G G.

In Fig. 6 two intermediate gears H H are used. The gears G G and H 11may be toothed or frictional, as considered to be most suitable.

I am now aware of the combination of two friction-wheels described inthe specification of F. XV. Gordon, to whom Patent No. 467,503, datedJanuary 26, 1892, has been issued. In the drawings attached to suchspecification appear two friction wheels connected by bevel-gears in asimilar manner to the two sets of friction-wheels which appear in Figs.3 and (3 of the drawings hereto, in combination with two disks, or itmight be with one disk, and I therefore do not claim such combinationnor any similarcombination, excepting when each of the two so-termedbrushwheels is represented by two or three friction-wheels connectedtogether in the manner set forth herein, whereby four or sixdrivingcontacts are obtained with a single disk instead of two only, oreight or twelve contacts if two disks were used, the improvementresulting in a greatly-increased capability for transmitting power, orexcepting when the two friction-wheels are dished, so as to bring theirperipheries close together, but not touching, and so as to inclose thebevel-gear, as in Fig. 1, and in addition when the combination is used,together with a revolving disk, in such a manner as that the twofriction-wheels shall revolve in the same direction.

I claim as my invention- 1. In disk and friction-wheel gearing: threefriction-wheels having a common axis, the central wheel of the threebeing fixed upon a shaft, an intermediate bevel -gear carried thereby,gears upon the two outer wheels meshing with said intermediate gear, thesaid outer wheels being loose upon the said shaft and a disk, all threefriction-wheels being in working contact with said disk, substantiallyas set forth.

2. In disk and friction-wheel gearing: the combination of the wheels A,A mounted loosely upon a shaft, gears 0 C an intermediate gear D, thelatter mounted on a radial axis in a third wheel A fixed to'the shaftand a disk J, the tires or peripheries of the three wheels, being inworking contact with said disk J, substantially as set forth.

3. In disk'and friction-wheel gearing: the combination of fourfriction-wheels having a common axis, arranged in two sets eachcomprising two wheels,bevel-gears connecting the same, an intermediategear in each set connected with the intermediate gearin the other set, athird set of bevel-gears forming the 0011-. nection, the intermediategear in such third set revolving upon an axis carried by a part fixedupon the shaft upon which the entire combination is mounted,substantially as set forth.

4'. In disk and friction-wheel gearing: the combination of sixfriction-wheels, having a common axis, arranged in two sets','eachcomprising three wheels,-a bevel-gear carried by the central wheel ineach set, gears 0n the two outer wheels in such set meshing with thebevel-gears, the two center wheels, a set of bevelbalancegearsconnecting the two center wheels in the two sets, the intermediate gearin such balance-gears revolving upon an axis radial from the common axisof all the six friction-wheels, such radial axis being carried by a partfixed upon the shaft upon which the entire combination is mounted,substantially as set forth.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

EDWARD KENWORTHY BUTTON.

lVitncsses:

CHAS. E. A'rxmson, HERBT. ALDERSON.

